Santander Consumer, the auto-finance unit of Spanish bank Santander, raised $1.8 billion in January, valuing the firm at about $8.34 billion at its offering price. Healthcare information company IMS Health raised about $1.30 billion last week from its IPO, valuing the company at about $6.64 billion.

The U.S. Treasury, which bailed out Ally for $17.2 billion during the 2008 financial crisis under the Troubled Asset Relief Program (TARP), sold all the 95 million shares on offer.

Ahead of the IPO, taxpayers had recovered $15.3 billion of that investment. The Treasury department said in a statement that including the anticipated proceeds from the IPO, taxpayers would have recovered about $500 million more than what was originally invested in the company.

Ally was among the auto, housing and finance companies bailed out in 2009 under the $423 billion Troubled Asset Relief Program (TARP). Taxpayers have recovered $418 billion from TARP as of March 27.

Shares of Ally, which initially filed for an IPO in March 2011 but repeatedly delayed its plans, are expected to start trading on Thursday and list on the New York Stock Exchange under the symbol "ALLY."

Ally previously said it expected to price its offering at between $25-$28 per share.

The Treasury, which held 36.8 percent of Ally before the offering, will see its stake fall to 14.1 percent if underwriters exercise an option to sell additional shares on behalf of the government.

Activist investor Daniel Loeb's hedge fund Third Point and Cerberus Capital Management are not selling any of their shares in Ally in the IPO. Third Point has a 9.5 percent stake, while Cerberus Capital owns an 8.6 percent stake.